74025-90-4Relevant academic research and scientific papers
Pyrimidinecarbamate derivatives as intermediates
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, (2008/06/13)
2,4-Disubstituted 6-[3,6-dihydro-1(2H)-pyridyl]pyrimidine-3-oxides of the formula STR1 wherein R1 is lower alkyl or lower alkoxy-lower alkyl, R2 is hydrogen or --COOR3 wherein R3 is lower alkyl or lower alkoxy-l
80. A New Route to the Synthesis of 2-Amino-6-(methoxycarbonyl)amino-4-(tetrahydropyridyl)pyrimidine 1-Oxide
Muller, Jean-Claude,Ramuz, Henri,Wagner, Hans-Peter
, p. 809 - 813 (2007/10/02)
A new approach to 2-amino-6-(methoxycarbonyl)amino-4-(1,2,3,6-tetrahydro-1-pyridyl)pyrimidine 1-oxide (3) is described.Methyl carbamate (5) reacted with guanidine to the pyrimidinecarbamate 6, which was successively
61. Synthesis of 2-Oxo-2H-oxadiazolo-pyrimidine-5-carbamates
Hengartner, Urs,Muller, Jean-Claude,Ramuz, Henri
, p. 669 - 672 (2007/10/02)
Thermal cyclization of the pyrimidine-N-oxide dicarbamate 2 gives a 95:5 mixture of the 2-oxo-2H-oxadiazolo- and pyrimidinecarbamates 3 and 4.An efficient procedure for the conversion of 3 to 4, and vice versa, is described.
Process for the preparation of oxadiazolopyrimidine derivatives
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, (2008/06/13)
A process for preparing oxadiazolopyrimidines of the formula STR1 wherein R is alkyl or alkoxyalkyl, by reacting a compound of the formula STR2 wherein R is as set forth above, with phosgene, is described.
